Nanomoulding with amorphous metals

Golden Kumar, Hong X. Tang and Jan Schroers ()
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Golden Kumar: Mechanical Engineering, Yale University, New Haven, Connecticut 06511, USA
Hong X. Tang: Mechanical Engineering, Yale University, New Haven, Connecticut 06511, USA
Jan Schroers: Mechanical Engineering, Yale University, New Haven, Connecticut 06511, USA

Nature, 2009, vol. 457, issue 7231, 868-872

Abstract: The small print Shrinking the dimension of features printed onto thermoplastics is critical for the manufacture of high-density storage devices such as CDs and DVDs of ever-greater capacity. The degree of miniaturization that can be achieved is limited in large part by the durability of the materials available for the mould, usually brittle silicon, and its ease of processing. Kumar et al. propose a new method for moulding features down to the 13 nm range using metallic glasses as both mould and — replacing thermoplastic polymers — as imprint materials too. The features made with these materials can in turn be replicated in materials with lower softening temperatures, or they can be erased and moulded again, providing a new way to produce, for example, high-density rewritable devices.

Date: 2009
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DOI: 10.1038/nature07718

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